一Ready to give up guessing,Sandy?一No,no,hold on! I think I______ at the answer now.
#105346
A
arrive
B
am arriving
C
have arrived
D
will arrive
推荐题目
一Have you handed in your schoolwork yet?一Yes,I have.I guess it _____ now.
#105339
A
has graded
B
is graded
C
is being graded
D
is grading
7.Although the causes of cancer ____, we do not yet have any practical way to prevent it.  
#105343
A
are being uncovered
B
have been uncovering
C
are uncovering
D
have uncovered
—What's that noise?—Oh,I forgot to tell you.The new machine ________.
#105313
A
was tested
B
will be tested
C
is being tested
D
has been tested